The trio, along with opener Keaton Jennings, could take part in the Edgbaston extravaganza after receiving permission from England to feature
Left to right: Jos Buttler, Moeen Ali and Jimmy Anderson
Jimmy Anderson, Jos Buttler and Moeen Ali have all been made available to play for their counties on T20 Blast Finals Day.
The trio, along with opener Keaton Jennings, could take part in the Edgbaston extravaganza after receiving permission from England to feature.
Moeen's Worcestershire Rapids face Lancashire Lightning in the first semi-final on Saturday, and could come up against all three of his international team-mates.
No decision has yet been made on whether or not Anderson will be allowed to play the remainder of the County Championship season for Lancashire, however, and the same applies for Stuart Broad - who is nursing a broken rib sustained on day two of the fifth Test against India at the Kia Oval.

Moeen Ali hit a century for Worcestershire Rapids earlier this season
Buttler is to sit out Lancashire's game against Hampshire in the final week of the campaign but Jennings will be available to his county.
Surrey will have the benefit of being able to field both Ollie Pope and Sam Curran for their final two matches of the term, against Somerset and Essex, who will not be allowed to select Alastair Cook despite the batsman having now retired from international cricket.
Yorkshire's relegation battle will not be helped by the enforced absences of Joe Root and Jonny Bairstow, while Ben Stokes will sit out the rest of Durham's Championship term and Chris Woakes - currently involved in Warwickshire's game against Leicestershire - will also be told to rest.
The players involved in England's one-day trip to Sri Lanka will leave for the tour on September 30, with the squad due to be announced later this week.